The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 1978
Filed:
Mar. 02, 1977
Gary A Jones, Arlington Heights, IL (US);
Zenith Radio Corporation, Glenview, IL (US);
Abstract
A television receiver signal translating system includes a tuner frequency-converting a received broadcast signal to an intermediate frequency signal. An acoustic surface wave filter and gain controlled amplifier are coupled to the tuner and drive a synchronous detecting system. An automatic gain control (AGC) maintains the output of recovered signal constant while a variable bandwidth stage changes the system frequency response as a function of signal strength. A variable influence sound carrier trap responds to the AGC providing increased sound carrier attenuation when strong signals are received and reduced attenuation during weak signal reception.